[rdo-dev] [Infra] images server cleanup

Hi, we'd like to participate actively in cleaning up after ourselves the images we upload at each tripleo promotion. We are planning to do so also for the container images in dockerhub, so part of this process has to be done anyway. (maybe we should also do it in rdoregistry) Since our access to the server is limited to sftp, we are thinking about using paramiko library in our promoter script, to get the list of hashes uploaded and their mtimes, so we can delete the oldest ones. Is there any better solution ? Thanks